batgrbproduct Analysis for Trigger=546731

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Jan 23 17:18:13 EST 2013
             Host Name: gcn5
   Current Working Dir: /local/data/raid16/prebascript_archive/trigger546731/batgroup_hand_proc
======================================================================

  Trigger: 00546731      Segment: 000

  BAT Trigger Time: 380591059.584   [s; MET]
      Trigger Stop: 380591071.744   [s; MET]
               UTC: 2013-01-22T23:44:09.452440    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 194.218399686616   Dec: 59.0153258308736  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.76
     Image Trigger?:     NO
     Rate S/N Ratio:     8.66025403784439  [ if not an image trigger ]
     Image S/N Ratio:    7.76

  Flight Position:   [ source = BAT ]
    RA: 194.218399686616   Dec: 59.0153258308736  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 194.307376650315   Dec: 59.0025452603605  [deg; J2000]  
        { 12h 57m 13.8s , +59d 00' 09.2" }
         +/- 2.95188380541384 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.51594551984708 [arcmin] (formal 1-sigma fit error)
    SNR: 6.47959722611494
 
  Angular difference between Flight and Ground position is 2.853833 arcmin
 
  Partial Coding Fraction: 0.890625    [ including projection effects ]

  Duration
     T90: 64 +/- 35.7770876399966
        Measured from: -12.5839998722076
                   to: 51.4160001277924     [s; relative to TRIGTIME]
     T50: 32 +/- 16
        Measured from: 3.41600012779236
                   to: 35.4160001277924     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 10.9160000085831     
                   to: 11.9160000085831     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -12.5839999914169     
                   to: 67.4160000085831     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.304341   0.364493   0.358743   0.142387
           0.046760   0.048896   0.044639   0.043706 [error]
 Peak      0.009844   0.025900   0.011650   0.003582
           0.005280   0.005623   0.005013   0.004847 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 8.28e-08 1.68e-07 2.66e-07 9.33e-07 7.39e-07 1.45e-06   erg/cm2
              Error 1.97e-08 2.31e-08 4.55e-08 3.66e-07 1.11e-07 3.96e-07   erg/cm2
Peak flux Power-law 1.52e-01 1.40e-01 8.92e-02 8.74e-02 4.17e-01 4.68e-01   ph/cm2/s
              Error 6.81e-02 4.36e-02 3.99e-02 7.68e-02 1.29e-01 1.52e-01   ph/cm2/s
 
Fluence   Cutoff-PL 8.30e-08 1.68e-07 2.66e-07 9.21e-07 1.44e-06 0.00e+00   erg/cm2
              Error 9.87e-09 2.22e-08 4.52e-08 4.67e-07 4.34e-07 0.00e+00   erg/cm2
Peak flux Cutoff-PL 1.24e-01 1.72e-01 8.75e-02 1.22e-02 3.94e-01 3.95e-01   ph/cm2/s
              Error 1.03e-01 6.75e-02 5.09e-02 7.45e-02 1.32e-01 1.15e-01   ph/cm2/s
 
Fluence        Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   erg/cm2
Peak flux      Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
              Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.338    0.245    -      -           9.43e-04 1.22e-04   79.240 57
CPL   3.449    0.304     372.0    0.0      8.13e-05 0.00e+00   78.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.649    0.538    -      -           3.20e-03 1.13e-03   61.050 57
CPL  -0.216    4.315      50.7    0.0      3.62e-02 0.00e+00   59.690 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 93.632000 sec.
T50 in the 50-300 keV band: 47.488000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   80.000  -12.584   67.416
T90    64.000  -12.584   51.416
T50    32.000    3.416   35.416
Peak    1.000   10.916   11.916

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  194.3074    59.0025   0.0297    21.4874  -140.7110         0.8640642      6.480 TRIG_00546731                 
 
Foreground time interval of the image:
-12.584  55.217 (delta_t =  67.801 [sec])
Background time interval of the image:
-60.584 -12.584 (delta_t =  48.000 [sec])

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from  -12.584 sec. to   67.416 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.33802     ( -0.244492   0.244946 )
Norm@50keV  : 9.43441E-04    ( -0.000122472   0.000121738 )
------------------------------------------------------------
# Chi-Squared =          79.24 using 59 PHA bins.
# Reduced chi-squared =          1.390 for     57 degrees of freedom 
# Null hypothesis probability =   2.732171e-02
 
Photon flux (15-150 keV)    in 80 sec: 0.113381 ( -0.0146243  0.0146633 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.39154e-07 ( -1.09995e-07  1.11844e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -12.584 sec. to   67.416 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.44859     ( -0.3693   0.23928 )
Epeak [keV] : 371.951      ( -9961.87 -9961.87 )
Norm@50keV  : 8.13262E-05    (     )
------------------------------------------------------------
# Chi-Squared =          78.62 using 59 PHA bins.
# Reduced chi-squared =          1.404 for     56 degrees of freedom 
# Null hypothesis probability =   2.476072e-02
 
Photon flux (15-150 keV)    in 80 sec: 0.113366 ( -0.0144033  0.014369 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.43788e-06 ( -4.2688e-07  4.40392e-07 ) ergs/cm2
 
Band function
Time interval is from  -12.584 sec. to   67.416 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.08824   ( 1.08829   1.08829 )
beta        : -1.33800    ( 1.338   0.24445 )
Epeak [keV] : 37.3849      ( -37.3604 -37.3604 )
Norm@50keV   : 1.79959E-03    ( -0.00097557   0.142973 )
------------------------------------------------------------
# Chi-Squared =          79.24 using 59 PHA bins.
# Reduced chi-squared =          1.441 for     55 degrees of freedom 
# Null hypothesis probability =   1.783621e-02
 
Photon flux (15-150 keV)    in 80 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.9273  (-3.03875  4.03513)
R^2/D10^2   : 8.43812E-03  (-0.00838038   0.00800913)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          98.79 using 59 PHA bins.
# Reduced chi-squared =          1.733 for     57 degrees of freedom 
# Null hypothesis probability =   4.991619e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.944e-08   1.028e-08
25- 50  1.739e-07   3.372e-08
50-150  3.553e-07   9.184e-08
15-150  5.686e-07   1.052e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.998       (      )
Norm        : 0.463702       (-0.463702     -0.463702)
------------------------------------------------------------
# Chi-Squared =          82.47 using 59 PHA bins.
# Reduced chi-squared =          1.447 for     57 degrees of freedom 
# Null hypothesis probability =   1.532143e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.238e-08   5.080e-08
25- 50  1.777e-07   9.680e-08
50-150  3.897e-07   2.141e-07
15-150  6.598e-07   3.580e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.74468        (-3.41363      4.89349)
R1^2/D10^2  : 0.225497        (-0.181493      0.65971)
kT2 [keV]   : 28.7086        (-10.3152      62.0039)
R2^2/D10^2  : 1.32311E-03    (-0.00116901   0.0037691)
------------------------------------------------------------
# Chi-Squared =          81.08 using 59 PHA bins.
# Reduced chi-squared =          1.474 for     55 degrees of freedom 
# Null hypothesis probability =   1.262627e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.813e-08   4.647e-08
25- 50  1.520e-07   6.568e-08
50-150  5.072e-07   2.843e-07
15-150  7.473e-07   3.189e-07

Peak spectrum fit

Power-law model
Time interval is from   10.916 sec. to   11.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.64859     ( -0.510654   0.565028 )
Norm@50keV  : 3.19642E-03    ( -0.00115023   0.00110468 )
------------------------------------------------------------
# Chi-Squared =          61.05 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     57 degrees of freedom 
# Null hypothesis probability =   3.324929e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.417182 ( -0.129415  0.12942 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.97291e-08 ( -1.08498e-08  1.14865e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   10.916 sec. to   11.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.216325     ( -6.21089   2.41902 )
Epeak [keV] : 50.6780      (   )
Norm@50keV  : 3.62236E-02    (     )
------------------------------------------------------------
# Chi-Squared =          59.69 using 59 PHA bins.
# Reduced chi-squared =          1.066 for     56 degrees of freedom 
# Null hypothesis probability =   3.430346e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.394000 ( -0.130181  0.134119 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.55203e-08 ( -1.02444e-08  4.5289e-08 ) ergs/cm2
 
Band function
Time interval is from   10.916 sec. to   11.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.01635   ( -7.88394   3.76138 )
beta        : -3.05096    ( 10   20 )
Epeak [keV] : 46.2278      ( -17.9262 171.551 )
Norm@50keV   : 0.108680    ( -0.104709   51.8181 )
------------------------------------------------------------
# Chi-Squared =          59.56 using 59 PHA bins.
# Reduced chi-squared =          1.083 for     55 degrees of freedom 
# Null hypothesis probability =   3.132618e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.8925  (-3.1791  4.72699)
R^2/D10^2   : 0.113119  (-0.113119   0.232192)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared =          59.93 using 59 PHA bins.
# Reduced chi-squared =          1.051 for     57 degrees of freedom 
# Null hypothesis probability =   3.698018e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.381e-09   2.090e-09
25- 50  1.053e-08   6.340e-09
50-150  8.899e-09   6.215e-09
15-150  2.281e-08   1.450e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 122.132       (-57.0624      -100.361)
Norm        : 1.79962       (-0.592697     0.880584)
------------------------------------------------------------
# Chi-Squared =          60.45 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     57 degrees of freedom 
# Null hypothesis probability =   3.524091e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.684e-09   1.858e-09
25- 50  8.405e-09   2.931e-09
50-150  1.513e-08   5.405e-09
15-150  2.822e-08   9.275e-09
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.00003E-04        (      )
R1^2/D10^2  : 3.97109E+04        (-39710.9      -39710.9)
kT2 [keV]   : 11.8930        (-3.17956      4.72653)
R2^2/D10^2  : 0.113104    (-0.113104   0.232209)
------------------------------------------------------------
# Chi-Squared =          59.95 using 59 PHA bins.
# Chi-Squared =          59.93 using 59 PHA bins.
# Reduced chi-squared =          1.090 for     55 degrees of freedom 
# Reduced chi-squared =          1.090 for     55 degrees of freedom 
# Null hypothesis probability =   3.010330e-01
# Null hypothesis probability =   3.014772e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.264e-09   2.113e-09
25- 50  1.046e-08   6.540e-09
50-150  9.436e-09   6.605e-09
15-150  2.316e-08   1.483e-08
Plot creation:
Wed Jan 23 19:41:45 EST 2013